FI71543C - Crystallization of polyaluminum hydroxide complexes. - Google Patents
Crystallization of polyaluminum hydroxide complexes. Download PDFInfo
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- FI71543C FI71543C FI834502A FI834502A FI71543C FI 71543 C FI71543 C FI 71543C FI 834502 A FI834502 A FI 834502A FI 834502 A FI834502 A FI 834502A FI 71543 C FI71543 C FI 71543C
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- Prior art keywords
- complexes
- polyaluminum hydroxide
- complex
- aqueous solution
- product
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- 150000004679 hydroxides Chemical class 0.000 title description 4
- 238000002425 crystallisation Methods 0.000 title description 2
- 230000008025 crystallization Effects 0.000 title description 2
- 239000007864 aqueous solution Substances 0.000 abstract description 13
- 239000007787 solid Substances 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 229910021653 sulphate ion Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 229910052782 aluminium Inorganic materials 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000012265 solid product Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical class O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- -1 sulfate anions Chemical class 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- DKAGJZJALZXOOV-UHFFFAOYSA-N hydrate;hydrochloride Chemical class O.Cl DKAGJZJALZXOOV-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical group 0.000 description 1
- IDOSCGGXFAKNLS-UHFFFAOYSA-K aluminum;dichloride;hydroxide Chemical compound [Cl-].[Cl-].[Al+2]O IDOSCGGXFAKNLS-UHFFFAOYSA-K 0.000 description 1
- STNCDALPBBWSTC-UHFFFAOYSA-K aluminum;hydroxide;sulfate Chemical compound [OH-].[Al+3].[O-]S([O-])(=O)=O STNCDALPBBWSTC-UHFFFAOYSA-K 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- LACHTKPTWJUZBJ-UHFFFAOYSA-N sulfo hydrogen sulfate;hydrate Chemical class O.OS(=O)(=O)OS(O)(=O)=O LACHTKPTWJUZBJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/56—Chlorides
- C01F7/57—Basic aluminium chlorides, e.g. polyaluminium chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/68—Aluminium compounds containing sulfur
- C01F7/74—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/78—Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements
- C01F7/786—Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements containing, besides aluminium, only anions, e.g. Al[OH]xCly[SO4]z
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Steroid Compounds (AREA)
Abstract
Description
1 715431 71543
Polyalumiinihydroksidikompleksin kiteytys Tämä keksintö koskee polyalumiinihydroksidikompleksien, joissa on niukasti sulfaattia ja joilla on yleinen kaava J^l(OH>£(SO4>y.(H20)z_7n jossa x on 0,75 - 2,0, edullisesti 1,5 - 2,0 y on 0,5 - 1,12, edullisesti 0,5 - 0,75 x + 2y = 3 z on 1,5 - 4, sopivasti 1,5 - 3,0, mutta myös polyalumiini-hydroksidisulfaattikompleksien, joilla on kaavaThis invention relates to low sulfate polyaluminum hydroxide complexes having the general formula J 1 (OH> E (SO 4> y. (H 2 O) 2 -7n where x is 0.75 to 2.0, preferably 1.5 to 2). 0 y is 0.5 to 1.12, preferably 0.5 to 0.75 x + 2y = 3 z is 1.5 to 4, suitably 1.5 to 3.0, but also for polyaluminum hydroxide sulphate complexes of the formula
Alm(OH)n' ' sulfaattianionien kanssa, ja samoin polyalu- miinihydroksidikloridikompleksien kiteytystä.Alm (OH) n '' with sulfate anions, as well as crystallization of polyaluminum hydroxide chloride complexes.
Tämän keksinnön tarkoituksena on saada aikaan mahdollisuus saada polyalumiinihydroksidikomplekseja kiinteässä, kiteisessä muodossa ilman vaaraa aineen tuhoamisesta.It is an object of the present invention to provide polyaluminum hydroxide complexes in solid, crystalline form without the risk of destruction.
Menetelmiä, jotka koskevat polyalumiinihydröksidisulfaatti-kompleksien valmistusta, joissa on niukasti sulfaattia, tunnetaan patenttijulkaisuista SE,A, 8104148-5, SE,A, 8104149-3, SE,A, 8206206-8 ja SE,A 8206207-6. Tässä suhteessa on havaittu tarpeelliseksi tietyissä tapauksissa stabiloida nämä kompleksit sitruunahapolla tai jollakin muulla a-hydroksikarboksyy-lihapolla tai heptonaatilla näiden kompleksien vesiliuosten tekemiseksi stabiilimmiksi varastossa, ts. vesiliuosten, joissa z yllä esitetyssä kaavassa on > 4.Methods for preparing polyaluminum hydroxide sulfate complexes with low sulfate are known from SE, A, 8104148-5, SE, A, 8104149-3, SE, A, 8206206-8 and SE, A 8206207-6. In this regard, it has been found necessary in certain cases to stabilize these complexes with citric acid or some other α-hydroxycarboxylic acid or heptonate to make aqueous solutions of these complexes more stable in stock, i.e. aqueous solutions with z in the above formula> 4.
Mainituissa patenteissa selostetaan myös tällaisten kompleksien valmistusta kuivassa muodossa, ts. jossa z on saatettu arvoon 1,5-4 ohutkalvohaihdutuksella. On kuitenkin havaittu, etteivät kompleksit kykene kestämään liian korkeita haih-dutuslämpötiloja ja että koska kompleksit tulevat tahmeiksi ja tukkivat haihduttimen, kohdataan vakavia käytännön on- 2 71543 gelmia valmistettaessa kiinteitä tuotteita teollisesti ohutkalvohaihduttimien avulla.Said patents also describe the preparation of such complexes in dry form, i.e. where z is brought to 1.5-4 by thin film evaporation. However, it has been found that the complexes are not able to withstand too high evaporation temperatures and that, as the complexes become tacky and clog the evaporator, serious practical problems are encountered in preparing solid products industrially using thin film evaporators.
Patenttijulkaisuista SE,A, 7805135-6 ja SE,A, 8101830-1 (= EP,A, 82850050.4) on myös tunnettua valmistaa polyalu-miinihydroksidisulfaattikompleksien vesiliuoksia, joilla komplekseilla on yleinen kaava Alm(OH)n^m + sulfaatti-ionien kanssa, jossa m ja n ovat molemmat positiivisia kokonaislukuja. Kun nämä kompleksit ovat vesiliuosten muodossa, saatetaan todeta tarkoituksenmukaisemmaksi, että näillä komplekseilla on kiinteä muoto kuljetuskustannusten alentamiseksi. Tuotteet sellaisenaan ovat kuitenkin stabiileja vesiliuoksessakin.It is also known from SE, A, 7805135-6 and SE, A, 8101830-1 (= EP, A, 82850050.4) to prepare aqueous solutions of polyaluminum hydroxide disulphate complexes having the general formula Alm (OH) n ^ m + sulphate ions , where m and n are both positive integers. When these complexes are in the form of aqueous solutions, it may be more appropriate to have these complexes in a solid form to reduce transportation costs. However, the products as such are stable even in aqueous solution.
Vesiliuosten valmistus polyalumiinihydroksidikloridikomplek-seista, joilla on yleinen kaava Al^iOH) (3m-n)+ kloridi-ionien kanssa, jossa m ja n ovat molemmat positiivisia kokonaislukuja, tunnetaan mm. patentista SE,A, 8101829-3 (= EP,A, 82850051.2).The preparation of aqueous solutions of polyaluminum hydroxide chloride complexes of the general formula with Al (OH) (3m-n) + chloride ions, where m and n are both positive integers, is known e.g. from SE, A, 8101829-3 (= EP, A, 82850051.2).
Muita alumiinihydroksidikloridikomplekseja ovat ne, joilla on kaava /A1C1 (OH)7 , jossa x on alle 3, normaalisti τ λ j n 1-2. Nämä kompleksit ovat tunnettuja patenttijulkaisuista SE,B, 7201333-7; Se,B, 7405237-4; SE,B, 7412965-1; SE,B, 7503641-8; ja DE,A, 2630768. Toinen tyyppi polyalumiini-kloridikompleksia, jolla on kaava (A1C1 3 ‘ X AOH)n, jossa A on alkalimetalli, ja /AICI3 . j B(0H)2_/n/ jossa B on maa-alkalimetalli ja n on positiivinen kokonaisluku ja x on luku välillä 1-2,7, tunnetaan patentista FR,A, 7512975.Other aluminum hydroxide chloride complexes are those of formula / AlCl 1 (OH) 7 where x is less than 3, normally τ λ j n 1-2. These complexes are known from SE, B, 7201333-7; Se, B, 7405237-4; SE, B, 7412965-1; SE, B, 7503641-8; and DE, A, 2630768. Another type of polyaluminum chloride complex of formula (AlCl 3 X X AOH) n, wherein A is an alkali metal, and AlCl 3. j B (OH) 2_ / n / where B is an alkaline earth metal and n is a positive integer and x is a number between 1-2.7, is known from patent FR, A, 7512975.
On kuitenkin toivottavaa saada tuotteet kiinteässä muodossa, koska ne ovat silloin stabiilimpia varastossa.However, it is desirable to have the products in solid form because they are then more stable in stock.
Nyt on yllättäen havaittu.mahdolliseksi tuottaa tällaisia polyalumiinihydroksidikomplekseja kiinteässä muodossa tämän keksinnön avulla, jolle on luonteenomaista, että lisätään edellä mainitun polyaluminiinihydroksidikompleksin vesi- 3 71543 liuokseen orgaanista liuotinta# joka on valittu ryhmästä# johon kuuluvat asetoni, metanoli# etanoli, n-propanoli# iso-propanoli ja tertiäärinen butanoli, sanotun vesiliuoksen ja liuottimen välisen painosuhteen ollessa vähintään 1:0#7# edullisesti 1:1-2.It has now surprisingly been found possible to produce such polyaluminum hydroxide complexes in solid form by means of the present invention, which is characterized by adding to an aqueous solution of the above-mentioned polyaluminium hydroxide complex an organic solvent # selected from the group consisting of acetone, methanol # ethanol, n-ethanol, -propanol and tertiary butanol, the weight ratio of said aqueous solution to the solvent being at least 1: 0 # 7 #, preferably 1: 1-2.
Muut keksinnön luonteenomaiset piirteet esitetään liitteenä olevissa patenttivaatimuksissa.Other characteristic features of the invention are set out in the appended claims.
Keksintöä kuvataan nyt yksityiskohtaisemmin viitaten seuraa-viin esimerkkeihin.The invention will now be described in more detail with reference to the following examples.
Esimerkki 1 50,3 g alumiinisulfaattia liuotettuna 37,3 g:aan vettä sekoitettiin 12,4 g:n kanssa kalsiumhydroksidia, minkä jälkeen kipsiä saostui ja saatiin vesiliuos, joka sisälsi 6 %Example 1 50.3 g of aluminum sulphate dissolved in 37.3 g of water were mixed with 12.4 g of calcium hydroxide, after which gypsum precipitated to give an aqueous solution containing 6%
Ai ja jossa OH/Al-moolisuhde oli 1,7 ja joka sisälsi 14,5 % so4.A 1 and wherein the OH / Al molar ratio was 1.7 and containing 14.5% so 4.
50 g sanottua liuosta sekoitettiin 50 g:n kanssa metanolia, jolloin 2 tunnin kuluttua saatiin kiteinen tuote, joka sisälsi 17,8 % AI, 35,7 % SO^ ja jonka OH/Al-suhde oli 1,9. Saalis oli 92 %.50 g of said solution were mixed with 50 g of methanol to give, after 2 hours, a crystalline product containing 17.8% Al, 35.7% SO 2 and an OH / Al ratio of 1.9. The rate was 92%.
Tuotetta kuivattiin ilmalla viisi kalenteripäivää, mikä johti veden vähenemiseen edelleen 17,9 %:iinAl:sta. Tuote ei ollut hygroskooppinen. Tämä osoitettiin varastoimalla tuotetta kolme viikkoa 50°C:ssa 55 %:n suhteellisessa kosteudessa ja mittaamalla vesipitoisuuden kasvu, jonka havaittiin olevan 1-3 %.The product was air dried for five calendar days, resulting in a further reduction in water to 17.9% from Al. The product was not hygroscopic. This was demonstrated by storing the product for three weeks at 50 ° C and 55% relative humidity and measuring the increase in water content found to be 1-3%.
Esimerkki 2 50 g esimerkin 1 mukaista polyalumiinihydroksidisulfaatti-kompleksin vesiliuosta lisättiin vähitellen 35 g:aan etanolia, minkä jälkeen saatiin kiinteä kiteinen tuote, joka sisälsi 16 % AI. Liuotin suodatettiin pois ja tuote saatiin suodattimen päällä olevana kokkareena.Example 2 50 g of an aqueous solution of the polyaluminum hydroxide sulfate complex of Example 1 was gradually added to 35 g of ethanol to give a solid crystalline product containing 16% Al. The solvent was filtered off and the product was obtained as a lump on top of the filter.
4 715434,71543
Esimerkit 3-5Examples 3-5
Poly-AIOH- Kuiva tuote, analyysiPoly-AIOH- Dry product, analysis
Esim. SO^-komplek- Me0H A1 g0 moolia Saalis sm liuosta 4Eg SO 2 complex- MeOH A1 g0 moles In the solution sm solution 4
n:° g g % % OH/AI Sn: ° g g%% OH / Al S
3 50 75 19,0 40,4 1,8 91 4 50 100 18,0 39,4 1,8 92 5 50 25 ei kiinteää tuotetta3 50 75 19.0 40.4 1.8 91 4 50 100 18.0 39.4 1.8 92 5 50 25 no solid product
Esimerkit 6-8Examples 6-8
Alumiinihydroksidisulfaattikompleksi-polynykleaatin liuos, joka oli valmistettu patentin SE,A, 8101830-1 mukaisesti ja jonka moolisuhde OH/Al oli 1,7 ja alumiinipitoisuus 2,3 %, kiteytettiin edellä olevien esimerkkien mukaisesti.A solution of aluminum hydroxide sulfate complex polycycleate prepared according to SE, A, 8101830-1 having a molar ratio of OH / Al of 1.7 and an aluminum content of 2.3% was crystallized according to the above examples.
Poly-Al-OH- Kuiva tuote, analyysi_Poly-Al-OH- Dry product, analysis_
Esim. SO^-kömpiek- MeOH ÄI SO^ Na moolia Saalis n:o S1 g g % % % OH/Al % 6 50 100 10,0 49,9 12,8 1,7 93 7 50 50 10,2 50,2 12,3 1,7 94 8 40 50 9,9 45,3 12,4 1,9 92For example, moles of SO 2 -meOH MeOH or SO 2 Na in Hall No. S 1 gg%%% OH / Al% 6 50 100 10.0 49.9 12.8 1.7 93 7 50 50 10.2 50, 2 12.3 1.7 94 8 40 50 9.9 45.3 12.4 1.9 92
Esimerkki 9Example 9
Niukasti sulfaattia sisältävä esimerkin 1 mukainen polyalu-miinihydroksidisulfaattikompleksi, jonka OH/Ai-moolisuhde oli 1,6, kiteytettiin asetonilla. Tässä suhteessa 50 g kiteytettiin 100 g:11a setonia. Saalis oli 94 % ja kuiva-aine-sisältö sisälsi Ai 15,9 % ja SO^ 38,4 %. Moolisuhde oli 1,6.The low sulfate polyaluminum hydroxide sulfate complex of Example 1 with an OH / Al molar ratio of 1.6 was crystallized from acetone. In this regard, 50 g were crystallized from 100 g of cetone. The yield was 94% and the dry matter content was Al 15.9% and SO 2 38.4%. The molar ratio was 1.6.
Esimerkki 10Example 10
Alumiinihydroksidikloridikompleksi-polynukleaatti, jonka OH/Al-moolisuhde oli 1,5 ja alumiinipitoisuus 5 %, kiteytettiin isopropanolilla käyttäen 50 g liuosta ja 100 g isopropanolia. Kuivan kiinteän tuotteen saalis oli 89 %, joka sisälsi 14,7 % Ai ja jonka OH/Ai-moolisuhde oli 1,6.Aluminum hydroxide dichloride complex polynucleate with an OH / Al molar ratio of 1.5 and an aluminum content of 5% was crystallized from isopropanol using 50 g of solution and 100 g of isopropanol. The yield of dry solid product was 89%, containing 14.7% Al and having an OH / Al molar ratio of 1.6.
Esimerkki 11Example 11
Esimerkissä 1 esitetty koe uusittiin, vaikka tässä tapauksessa käytettiin 75 g isopropanolia 50 g:n metanolimäärän 71543 5 sijasta. Lopullinen tuote sisälsi 14,9 % AI ja sen 0H/A1-moolisuhde oli 1,7. Esimerkeissä 1-11 saaduilla kiinteillä tuotteilla oli amorfinen kiderakenne.The experiment shown in Example 1 was repeated, although in this case 75 g of isopropanol were used instead of 50 g of methanol 71543 5. The final product contained 14.9% Al and had a 0H / Al molar ratio of 1.7. The solid products obtained in Examples 1-11 had an amorphous crystal structure.
Esimerkki 12Example 12
Esimerkin 1 mukainen vesiliuos ohutkalvohaihdutettiin 65°C:ssa, jolloin saatiin kiinteä tuote, joka sisälsi 16,9 % alumiinia ja jonka OH/Al-moolisuhde oli 1,65. Tätä tuotetta varastoitiin kolme viikkoa 50°C:n ja 70°C:n lämpötiloissa atmosfäärissä, jonka suhteellinen kosteus oli 55 %. Ensiksi mainitussa lämpötilassa tuote absorboi n. 6 % H^O ja n. 12 % H2O viimeksi mainitussa lämpötilassa.The aqueous solution of Example 1 was thin film evaporated at 65 ° C to give a solid product containing 16.9% aluminum and an OH / Al molar ratio of 1.65. This product was stored for three weeks at 50 ° C and 70 ° C in an atmosphere of 55% relative humidity. At the former temperature, the product absorbs about 6% H 2 O and about 12% H 2 O at the latter temperature.
Saatuja tuotteita käytettiin mm. vedenpuhdistusaineina, pidätysaineina selluloosateollisuudessa ja orgaanisten tehtaiden vedenpoistoon.The products obtained were used e.g. as water purifiers, retention agents in the pulp industry and for dewatering of organic mills.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8207054A SE434504B (en) | 1982-12-09 | 1982-12-09 | PROCEDURE FOR PREPARING POLYALUMINUM HYDROXIDE COMPLEX WITH SULPHATE OR CHLORIDE DANGE IN SOLID FORM |
| SE8207054 | 1982-12-09 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI834502A0 FI834502A0 (en) | 1983-12-08 |
| FI834502A FI834502A (en) | 1984-06-10 |
| FI71543B FI71543B (en) | 1986-10-10 |
| FI71543C true FI71543C (en) | 1987-01-19 |
Family
ID=20348949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI834502A FI71543C (en) | 1982-12-09 | 1983-12-08 | Crystallization of polyaluminum hydroxide complexes. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4559220A (en) |
| EP (1) | EP0113648B1 (en) |
| JP (1) | JPS59111917A (en) |
| AT (1) | ATE26571T1 (en) |
| CA (1) | CA1202467A (en) |
| DE (1) | DE3370956D1 (en) |
| FI (1) | FI71543C (en) |
| NO (1) | NO834519L (en) |
| SE (1) | SE434504B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182410A (en) * | 1990-12-14 | 1993-01-26 | Aluminum Company Of America | Organo-aluminum hydroxide compounds |
| FR2687394B1 (en) * | 1992-02-18 | 1994-03-25 | Elf Atochem Sa | NOVEL ALUMINUM POLYCHLOROSULFATES, PROCESS FOR THEIR PREPARATION AND THEIR APPLICATIONS. |
| CA2229266C (en) * | 1995-09-18 | 2001-10-16 | Delta Chemical Corporation | Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions |
| SE526891C2 (en) * | 2002-07-09 | 2005-11-15 | Feralco Ab | Aluminum sulfate compositions containing polynuclear complexes and process for their preparation and use thereof |
| CN109824021A (en) * | 2019-04-15 | 2019-05-31 | 新疆大学 | A kind of method for recycling and regenerating industrial waste sulfuric acid |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268295A (en) * | 1961-10-06 | 1966-08-23 | Reynolds Metals Co | Alumina hydrate and its method of preparation |
| GB1050118A (en) * | 1962-09-03 | 1966-12-07 | Courtaulds Ltd | Manufacture of Anhydrous Sodium Sulphate |
| JPS5725492B2 (en) * | 1973-04-19 | 1982-05-29 | ||
| US4059681A (en) * | 1973-05-14 | 1977-11-22 | Purdue Research Foundation | Stable dried aluminum hydroxide gel |
| US4242328A (en) * | 1973-05-14 | 1980-12-30 | Purdue Research Foundation | Process and compositions |
| US4083933A (en) * | 1974-01-26 | 1978-04-11 | Hoechst Aktiengesellschaft | Process for preparing AlH3 (PO4)2 ·3H2 O |
| DE2403707A1 (en) * | 1974-01-26 | 1975-08-14 | Hoechst Ag | METHOD OF MANUFACTURING ALH LOW 3 (PO LOW 4) LOW 2. 3H LOW 2 O |
| DE2510663C3 (en) * | 1975-03-12 | 1981-08-06 | Dr. Madaus & Co, 5000 Köln | Aluminum polyhydroxisulphate, process for its production and medicament containing it |
| US4238347A (en) * | 1979-08-09 | 1980-12-09 | Allied Chemical Corporation | Amorphous polyaluminum sulfate compositions |
| SE437016B (en) * | 1981-03-23 | 1985-02-04 | Boliden Ab | ALUMINUM SULPHATE COMPOSITION FOR WATER PURIFICATION, PAPER SLIMMING AND WATER DRAINAGE, AND PROCEDURE FOR ITS PREPARATION |
-
1982
- 1982-12-09 SE SE8207054A patent/SE434504B/en not_active IP Right Cessation
-
1983
- 1983-11-17 US US06/552,680 patent/US4559220A/en not_active Expired - Fee Related
- 1983-11-29 CA CA000442132A patent/CA1202467A/en not_active Expired
- 1983-12-05 EP EP83850324A patent/EP0113648B1/en not_active Expired
- 1983-12-05 AT AT83850324T patent/ATE26571T1/en not_active IP Right Cessation
- 1983-12-05 DE DE8383850324T patent/DE3370956D1/en not_active Expired
- 1983-12-08 NO NO834519A patent/NO834519L/en unknown
- 1983-12-08 JP JP58232185A patent/JPS59111917A/en active Pending
- 1983-12-08 FI FI834502A patent/FI71543C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI834502A (en) | 1984-06-10 |
| SE8207054D0 (en) | 1982-12-09 |
| SE8207054L (en) | 1984-06-10 |
| FI834502A0 (en) | 1983-12-08 |
| EP0113648A1 (en) | 1984-07-18 |
| CA1202467A (en) | 1986-04-01 |
| SE434504B (en) | 1984-07-30 |
| JPS59111917A (en) | 1984-06-28 |
| FI71543B (en) | 1986-10-10 |
| NO834519L (en) | 1984-06-12 |
| US4559220A (en) | 1985-12-17 |
| ATE26571T1 (en) | 1987-05-15 |
| DE3370956D1 (en) | 1987-05-21 |
| EP0113648B1 (en) | 1987-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: BOLIDEN AKTIEBOLAG |